|Scientific Name||Thoracica sessilia|
|Time of Year||All year|
|Time of Day||All day|
The Acorn Barnacle is found in underwater in the ocean. Its shadow is tiny and it does not move.
The Acorn Barnacle can be donated to the museum. Upon doing so, the following text is given by Blathers:
"They attach to hard places, and though they looks like bivalves, they are related to shrimp and crab. Some species are even edible and have a very crab-like taste to them, making them a fine delicacy. Young acorn barnacles come from eggs, do not have shells, and float around the ocean like shrimp. They gradually develop their shells as they grow into the image we usually see."
Upon catching the fish, the player will say the following:
"I got an acorn barnacle! Maybe I can grow a barnacle tree?"